* {
    margin: 0;
    padding: 0;
  }

  html {
    font-size: 20px;
  }

  #box1,
  #box2,
  #box3 {
    width: 100px;
    height: 100px;
    background-color: blueviolet;
    position: absolute;
    left: 0;
  }
  a{
    color: blue;
    font-size: 18px;
    position: absolute;
    top: 350px;
    left: 0px;
  }